Quadrilateral Properties

Front

Trapezoid

Back

At least one pair of opposite sides are parallel.

Front

Isosceles Trapezoid

Back

At least one pair of opposite sides parallel. At least one pair of opposite sides congruent. Base angles are congruent. Opposite angles are supplementary. Diagonals are congruent.

Front

Right Trapezoid

Back

At least one pair of opposite sides are parallel. 2 right angles.

Front

Parallelogram

Back

Has all properties of a trapezoid. Both pairs of opposite sides are parallel. Both pairs of opposite sides are congruent. Both pairs of opposite angles are congruent. Consecutive angles are supplementary. Diagonals bisect each other.

Front

Rectangle

Back

Contains all parallelogram properties. 4 right angles. Diagonals are congruent.

Front

Rhombus

Back

Contains all parallelogram properties. All sides are congruent. Diagonals bisect its angles. Diagonals are perpendicular.

Front

Square

Back

Contains all parallelogram properties. Contains all rectangle properties. Contains all rhombus properties.